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Old 01-08-2012, 12:59 PM   #101
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Ok. But on ms pnp, does the ecu need the water/engine temperature constantly, or just on startup? If on startup only the place i was thinking would just might work?
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Old 01-08-2012, 01:00 PM   #102
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I don't think you can do that, it won't seal the stock water neck (not pictured) has an o-ring to seal it. Begi's cover is on top of that with a thermostat gasket, and we use freeze plugs. I don't think there's room for a thermostat gasket there.
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Old 01-08-2012, 03:15 PM   #103
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If you want to bypass the stock ecu so its completely out of the loop and the fans are running on their own, run a thermostat on the bottom hose of the radiator. (160 degree thermostat sensor) Preferably if you have an aluminum rad, weld a bung right at the bottom. What this will do is keep your radiator full of cooler water regarding of engine temp. The thermostat at the engine outlet will control flow to this cooler coolant in the radiator.
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Old 01-09-2012, 01:07 PM   #104
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What is the function of this part: http://www.mx5parts.co.uk/valve-mazda-p-773.html

Can i just take it off completely and leave the holes in the manifold open?And why is it called air valve?
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Old 04-17-2012, 05:26 PM   #105
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Quote:
Originally Posted by Savington View Post
And WTF are you doing running TB/IM heater lines still? Eliminate that ----.
Can someone please give me some information on how to do that? I know Trackspeed offers a freeze plug for where the neck is, but what do I do with the other plumbing?

Thanks.
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Old 04-17-2012, 05:48 PM   #106
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Quote:
Originally Posted by sasu` View Post
What is the function of this part: Air Valve, MX5 Mk1 1.6 - Service Engine Parts for Mk1 MX5 1989 1998 - MX5 Parts Spares

Can i just take it off completely and leave the holes in the manifold open?And why is it called air valve?
Late to the party, but for future reference...

This device was used on the '90-'93 1.6l engines in the US, and probably elsewhere. It is a thermostatically-controller air valve, which sits inline with an air passage cast into the intake manifold, which draws are in from a bypass hole cast into the throttle body flange, and dumps it into the plenum.



It is controlled by the temperature of the coolant flowing through it, allowing a bit of extra air into the intake when the engine is very cold. The factory manual test procedure calls for it to be cooled to 32F, but does not give an actual spec for what temperature it normally opens and closes at in typical operation.



A lot of folks think that this valve was unique to the 1.6 Miatas, but the '94-'97 cars had it as well. On that application, it was integrated into the lower section of the throttle body, in the same housing as the IAC solenoid.



It's the part labeled "Thermowax" and "Air Valve."



Quote:
Originally Posted by skeeler View Post
Can someone please give me some information on how to do that? I know Trackspeed offers a freeze plug for where the neck is, but what do I do with the other plumbing?
Just remove the hoses from the throttle body and air bypass valve, cap them off with rubber plugs (optional) and install a new hose between the port on the lower intake manifold and the port on the thermostat housing (if present) or mixing manifold where the hoses you removed from the throttle body and air valve came from.
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Last edited by Joe Perez; 02-17-2013 at 02:12 PM.
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Old 02-17-2013, 01:20 PM   #107
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Zombie thread revive:
Is the Kia thermostat housing cover the same as the water neck?
Searched all the old threads, the JC Whitney part number pulls up nothing. Found this guy on Amazon for $12.26 though...

ASIN: B004HOA00U
Item model number: 311-0024

same-same?

EDIT: Just compared it against the BEGI website, appears identical, down to the "2-2" stamping on it.
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Coolant mother f**king reroute-31zz6e4yhol._sx300_.jpg   Coolant mother f**king reroute-31zz6e4yhol._sx300_.jpg  

Last edited by calteg; 02-18-2013 at 10:45 AM.
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